Oil burner for furnaces



May 1, 1923. 1,453,907

w. H. BOZARTH QIL BURNER FOR FURNACES Filed Sept. 4, 1920 2 Sheets-SheetW. H. BOZARTH' May 1, 1923. 1,453,907

OIL BURNER FOR FURNACES Filed Sept. 4, 1920 2 Sheets-Sheet 2 f1 uunnulnl un g l gg l lllm IiiiIiiillnngp l lniiw Patented May 1, 1923.

. UNITED hsrrmee R '1 QFFLQE, v

WILLIAM BOZARTH,.0F VINELANID, NEW J OIL evmme FOB weheees- Annet e he?w e 4, we rie e masso l wham it m y co cern I Be i, kil Wil that I,WILLI BQZABTH,

a citizen of United Stetes; pesi idi g a t h m hmu y f hmhe lehd and a-h5 of New Jersey, hev'e invented liewend useful Imprvemeptjs in Q11 Buln'el e for Furnecee, which the follcwing is specification. v, v

T invention el tes to oi hh hhh or furnaces, ehd particularly tc ab'urne'if to be fitted. th a 11 to h the h e" ils a t Q ertte we: s e heAn obgeet ie tq pr'ovlid e a burner adaptable to he een etyucted for andlfetchly fi'tth W h." i fire (:i lCulnf,

15 n ett neeten p lg r, 01; other form, and whlch W111 l e j the 1mmheet a ht i ea ng e fi ien y o e f e .hs, h

A further object resides in con stliucting the burner in such e mannerthat can be reed y fitte e emq e hem e inm &1 W13 h h hd, a d an b ma h:Q e S 9 fill'th ir pot.

Ye ehhthe Q i he n P o id a ene i g seem. ludi g sube h h and generatorsto supply gt pilot and the burner.

A still further object to so constg'uct and arrange the Subgenerator antgenerators that a proper flow of. gee to the burner will e. ma ntain d din u e we a su i' h vohii'rie fiiltbe generated by the pilot'system w ehe burn is. ex g ished. o u e h kten hm h t w e t hh h s lghted' ,v .v

I t ese and other objects in View, tY-h h with llp eh fr mt dmw ngspecificati n th hla-ime h s hjw h o'n h emcle eh e i h el fth t fi o hhstr e hem and wshhinet e part hiQ w l now he se Qhth-f In. the shewihei Eigu e 1 e 'P Pi V e f t c u a heme; he etm t hmhee th "my i ve tien-1 the tru ture;

3 is A iew v eljti cal secti ona l iexg thrcu gh n. e eve ieh hem he edmeme he heme? h ls h eh t0 t illu tm e the mu mctieh.

e e e w h levetihh f m the P- peete and: r Eigeeeeee ie v w hi he erteqie hu r ere- .e'ehti eh e ewe inde 7 i a agment ry e t ona ew showingin cleteil the manner of conriectipg he burner sec iqn .ee'th The ]p 11'1 1 erhere illtystyeted adepted to be suppqrted upon the gi'e te of afurnace 'hea'dy h e, t7 thee Qt "Within t th Pot; -hdtq' di e t ts flamin h m nn that? 'complielj greet s t efiiciencyl 'With this in i d he rshp o te l an h Pr vided, thesesupp'orts" he'vipg feet 3 which s 19911he n ce grate The bur er e is mouhteddirectly on these legs r up'ph ts;a ie the h hYh'te h the grate to direct its; flames, at e'pcint 'Withnhe fi t n t to s c hemeximh heating ei fici ency The burner is here ehqs vfies nihd'e f 11 011131 foim t9 fit within. a circqlal hi pe e hhee'it m h h f i i figuratiefi to conform te ether shapes of- 'rht l dhre otBy x erim matip it hag been found that a burner stlfu'ctufe'rhade up in'3, single piece which can, be mide t0 entireljfilIt-he fire V E v I. y"'1 pet. Th 101111 19 1 15} 1}}?(18 u p 111 two Selmcircular sections 5and 6, and 91 seh h e h h ctetl thgethe .1 t e tim bes Q h n. F The. bevhed d t p T d 8 ar sh a d ver i al oh th ti h of the section 6 by,meeting bolts 9, qr. ethel f ste ngs; and NW1. tt'flhvete s k t-A'ctbveteil lgck irig strip 10 ie eeel lred '01'1 e e d the, sec ion 5'y mehhe l l n s ehepedt it t s k t e w 95 st? ps 7 ands. VVit h' thiee'opstrqc t iqn bf t e hhrh r, the ssti ne 5; and M e. e.- arhte y e t hug t e 10 f. th f rhte n the when. th hth hj sh n 10 are; itted be weenstripe en 8' the hemisewe wees will he "Qihe t9 PI exit h on in ou c v ehe upp i es 1" he r g: th weight ofitl buyer an 1" T "s'ectioh i hho te}t Each Qt the se hih reh il e l h s a .li h hh i as @I-e e Whwhaeehlemhe s i p l r-he elnka "9 hfi ihe feie gs h nner hen. ul er'h. 1audit 7 {3,1114 Then l itltlleh Qph ee is eleva ed ehh re the Q' it h ih'e e @1 the we ntlfal structures up the center of the circle of theburner. hese burner openings are formed through lava or other suitablestrips 15, 16, and 1'2, which are mounted substantially as shown in Fig.3, the purpose oi? the angular disposition be ing to direct the flamefrom the outer burner openings 13 against the sides of the furnace firepot, while the flame trom the inner circle of burner openings isdirected angularly inwardly. It has been found that the burner openingsare best formed through the lava strips in substantially the mannershown in Fig. l, as in this way a number of small independent flamesarecombined to form a single cone and the heat is concentrated moreeffectually. It is desirable that screens be provided beneath the lavaburner strips, as shown at 1?, in Fig.3.

With the construction of the burner in two or several parts it isnecessary that a gas supply be established to the chamber o't each part,and this is accomplished in the present instance through supply pipes 18and 19, these supply pipes leading "from three-way connections 20 and21. To maintain an even flow of through all of tl e burner openings itis prei'iera le that the burner plate 17 be left blank above thedischarge ends of these pipes 18 and 19, which pipes open through thebottom ot the burner members 5 and 6, so that the will pan. to thechambers thereof and will flow at uniform pressure through the burneropeniu To supply gas to and provide for subscai tia-lly instantaneousgeneration and ignition at the burner, I provide generators and asubgenerator. in air box 22 is positioned beneath the burner ringadjacent the inner side of the open center thereof, and is di vided intothree various compartments 23, 2 land 25. Generator tubes 26 and 27 leadfrom the outer side of the burner and have their inner ends receivedthrough openings into the outercompartments 23 and 25, a subgeneratortube being positioned intermediate between generator tubes 26 and 27 andhaving its inner end extending into compartment 24. The sub andgenerator tubes are sul stantially identical in construction, and asshown in Fig. 2, have heads 29 at their inner ends which are providedwith small gas escape openings 30, union nipples 31 bein connected onthe outer ends of these three tubes. bar 32 adapted to recei e thesquared portions of nipples 31 and to support the outer ends of thetubes are carried by rods 33 which are connected on supporting, standard1'. bar 34'is provided with grooves to receive and support tubes, nothere illustrated, having connection with the nipples 31, and by whichkerosene or other fuel oil is. supplied to the tubes. Wick case 35 ofsteel wire fabric or like-mater- "having shredded astestes packed in thecenter thereof as 36 is placed within each of the tubes 26, 27, and 28,and each tube has a strainer screen provided at 87 adjacent gasdischarge opening 30.

The operation of the generator and sub generator tubes requires theapplication of heat to raise temperature sutliciently to gasify thevolatile oil as it is carried along by the wick structures, and thisheating of the tubes is accomplished through the burner structure bestshown in Fig. 5. This struc-' ture includes elongated gas burners 37 and38 located beneath generator tubes 26 and 27 and combination gas andliquid fuel burner extending beneath subgenerator tube 28. Gas issupplied to burners. S7 and 38 from. three-way connections 20 and 21,and biiirner 39 receives its gas supply through pipe 10. Gas pipes 4-1and 12 open into chambers 23 and 25 in line with the gasdischargeopenings from generator tubes 26 and 2?, and these pipes are looped downand back to join with connections 20 and 21. The g is pipe 40 is loopedup wardly, as shown in 2, and opens into compartment 2% in line withdischarge opening 30 of suliigenerator tube 28.

A hollow head 43 is provided in conjunction with burner 39 and hasburners 41% and which are disposed beneath the inner ends ot generatortubes 26 and 27 and substantially in line with. burners 37 and 38. Pilottubes and 47 lead from the gas chamber in head and have their burnertips adjacent the inner and middle rings of burner openings in the mainburner. Combination burner 39 has wicks .18 extending along each sidethereof to receive liquid fuel and to direct the flame therefrom againstsubgenerator tube 28.

n the use of my improved oil burner, the

ts are assembled in a furnace in the manand when the tube has beenraised. to a generating temperature the valve of the oil supply theretoopened. As oil is supplied to the outer end ot the tube it is taken upand advanced by the wick formation therein,

and upon being brought to the proper-temof the air box and mixed withthe gas";

The gas travels down through pipe 4 :0 and 7 is supplied to burner 39and head 43. The gas flowing at burners 39, 44 and 45, and at the pilottips on tubes 46 and 47, is lighted and these flames are kept burningatall times. The flame at burner 39 heats subgenerator tube 28sufliciently to generate gas to supply this burner, burners 44 and 45,and the pilot burners. Burners 44 and 45 heat generator tubes 26 and 27at their inner ends and keep the same sufliciently hot that when oil issupplied thereto the oil will be substantially instantaneouslyvolatilized and an immediate supply of gas will be furnished through gaspipes 41 and 42 when oil is supplied to the generator tubes. A portionof the gas passing through these pipes is consumed by burners 37 and 38to heat the generator tubes to proper generating temperature, and theremainder of the gas is carried through pipes 18 and 19 to the gaschambers of the main burner. As the gas escapes from the burner openingsit is ignited by the pilots, and the burner shows flame over its entirearea. If desired, the top of the air box might be made removable to giveaccess to clean the gas discharge openings of the sub and generatortubes, however it has been found that the formation of carbon and thecollection of other residuary matter within the tubes is almostnegligible.

While, in the foregoing, I have described specific embodiments, and havementioned only certain possible modifications, it will be appreciatedthat in practice I do not limit myself to such specific details asherein set forth, but may resort to any practical modifications fallingwithin the scope of the invention as defined in the appended claims.

I claim:

1. An oil burner to be fitted for use in furnaces comprising a pair ofsubstantially semi-circular burner members to be fitted within thefurnace, and dove-tail connections by which the burner parts are readilymoved vertically one with respect to the other and are held in assembledrelation, said burner having burner openings to spread the flame anddirect the same against the sides of the furnace structure.

2. An oil burner to be fitted for use in furnaces including with a gasconsuming burner made in parts to be "more readily fitted within thefurnace, dove-tail connections by which the burner parts are held inassemb ed position, and generator structure beneath the burner tovolatilize oil to supply gas to the burner, said generator structurebeing vertically beneath and entirely within the confines of the burnerto thus avoid obstructing and interfering with fitting and assemblingthe burner.

3. An oil burner for furnaces including with a gas consuming burner tobe fitted in the fire pot of the furnace, supporting legs by which saidburner is maintained at an elevation above the furnace grate, an air boxsupported beneath the burner at one side, horizontally disposedgenerator tubes to be connected with an oil supply having their innerends extended into the air box assembled by being and provided with gasdischargeopenings, gas supply pipes receiving gas from the dischargeopenings of the generator tubes and extended to conduct the gas to theburner, a subgenerator tube, a subgenerator burner located beneath thesubgenerator tube provided with an extension head adjacent the air box,pilot burners on said extension head beneath the generator tubes, pipesfrom said extension head provided with pilot tips adjacent the burneropenings of the main. burner, and a gas conveying pipe conducting gasformed in said subgenerator tube to the subgenerator burner and theextension head thereof.

In testimony whereof, I aflix my signature.

